Smoke-consuming boiler-furnace.



' No. 718,608. PATENTBD JAN. 20, 1903.

W. H. DANIELS.

SMOKE GONSUMING BOILER FURNACE,

APPLICATION FILED we. 4, 1992.

I0 MODEL.

Inventor:

UNITED STATES PATENT OFFICE.

WILLIAM H. DANIELS, OF KANSAS CITY, KANSAS, ASSIGNOR OF TWO- THIRDS TO ALBERT T. BARNES, OF KANSAS CITY, MISSOURI, AND FRANK CAMPBELL, OF KANSAS CITY, KANSAS.

S MOKE-CONSUMING BOILER-FURNACE.

SPECIFICATION formingpart of Letters Patent No. 718,608, dated January 20, 1903.

Application filed August 4, 1902. SerialNo. 118,365. (No model.) 7

I To all whom it may concern.-

Be it known that 1, WILLIAM H. DANIELS, a citizen of the United States, residing at Kansas City, in the county of Wyandotte and State of Kansas, have invented certain new and useful Improvements in Smoke-Consuming Boiler-Furnaces, of which the following is a specification.

My invention relates to smoke-consuming boiler-furnaces; and my object is to produce a structure whereby the smoke and combustible gases shall be retained in the fire-box a sufficient length of time to allow of their almost perfect consumption, and thereby effect an economy in the use of fuel which is highly desired.

To this end the invention consists in certain novel and peculiar features of construction and combinations of parts, as hereinafter described and claimed, and in order that it may be fully understood reference is to be had to the accompanying drawings,in which- Figure 1 represents a vertical longitudinal section of a boiler-furnace embodying my invention. Fig. 2 isa horizontal section taken below the boiler.

In the said drawings, 1 designates the furnace, of any suitable or preferred type; 2, the fire-box thereof; 3, the grate; 4, the opening for the introduction of fuel, and 5 the opening for the removal of ashes, said openings 4 and 5 being in practice, though not herein' shown, provided with the usual doors.

6 designates the bridge-wall forming the back of the fire-box, and 7 the bridge-wall extension, said extension projecting forwardly from the upper end of the bridge-wall to a point about vertically over the center of the grate.

8 designates a deflector composed of one or more sections and extending approximately parallel with but in a lower plane than the bridge-wall 7 and projecting rearwardly from the front wall of the furnace to a vertical plane about half way between said wall and the plane of the front end of the bridge-wall extension, and just below the deflector is an opening 9, through which air enters to sup ply the fire-chamber with the requisite volume of oxygen to properly support combustion, and this opening is provided with a door, preferably a hinged door 10, as shown, and with means for regulating the volume of air which may be permitted to enter the furnace, the means in this instance being a hook ll, pivoted to the door and adapted to engage one of a vertical series of staples 12 to hold the door open more or less, it being understood, of course, that I do not wish to restrict myself to any special mechanism for controlling the passage of air through opening 9.

13 designates the boiler, of any suitable or preferred type, the same being disposed vertically over the fire-box, so as to receive the full benefit of the heat generated, the smokestack 14 extending upward from the front end of the boiler forward of the boiler-tubes 15, as shown.

By locating the smoke-stack end of the furnace over the fire-box and against the front wall of the furnace the full volume of the heat is applied on the boiler for its full length without impairing the proper and direct circulation of the same, as would be thecase if a dead-air space was formed above the firebox by the location of the contiguous end of the boiler at some distance from the front wall of the furnace. Furthermore, the heat is applied twice for the full length of the boiler, and steam is generated at a minimum consumption of fuel.

In practice the products of combustion namely, the smoke and gases arising from the fuelare condensed by the air entering through opening 9 below the bridge-wall extension and from such point are caused by the draft to follow the course indicated by the arrows, Fig. 1that is to say, to first pass upwardly and forwardly through the opening between the deflector and bridge-wall extentension and impinge against the front end of the boiler and then pass along the bottom and sides of the boiler to its rear end, where it enters and moves forwardly through the tubes and eventually escapes through the smokestack. By condensing the smoke and gases, as explained,and retarding them for a suflicient length of time to be thoroughly mixed with the fresh air constantly entering in more or less volume through opening 9 sufficient time is given for their almost perfect combustion, leaving to escape by the course previously pointed out the lighter smoke and non-combustible gases, together with the heat generated. By thus efiecting an almost perfect combustion the full benefit of the fuel is derived and the furnace operated at a minimum expense.

From the above description it will be apparent that I have produced a smoke'consuming boiler-furnace which embodies the features of advantage enumerated as desirable in the statement of invention and which may be modified in minor particulars without departing from the essential spirit and scope of the invention or sacrificing any of its advantages.

Having thus described the invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. Asmoke-consuming boiler-furnace, comprising a fire-box, a deflector above the grate and projecting rearwardly from the front wall of the furnace, at bridge-wall extension projecting forwardly over the grate, means for admitting air to the fire-box near the lower side of the deflector, and a boiler within the furnace and having its smoke-stack end directly over the bridge-wall extension and said deflector.

2. Asmoke-consumingboiler-furnace, comprising a fire-box, a deflector above the grate and projecting rearwardly from the front wall of the furnace, a bridge-wall extension projecting forwardly over the grate, a boiler within the furnace and having its smokestack end vertically over the bridge-wall extension and said deflector, an opening in the wall of the furnace below the deflector, a door controlling said opening, a hook pivoted to said door, and a vertical series of staples for engagement with said hook to secure the door in the desired position.

In testimony whereof I afix my signature in the presence of two witnesses.

WILLIAM H. DANIELS.

Witnesses:

H. C. RODGERS, G. Y. Tnonrn. 

